Environment: milieu / climate zone / depth range / distribution range
Marine; freshwater; brackish; benthopelagic. Tropical; 7°N - 27°S, 57°W - 34°W
South America: French Guiana and Brazil.
Length at first maturity / Size / Weight / Age
Maturity: Lm 18.0  range ? - ? cm
Max length : 120 cm TL male/unsexed; (Ref. 39852); max. published weight: 144.00 g (Ref. 118626)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Marceniuk, A.P. and N.A. Menezes, 2007. Systematics of the family Ariidae (Ostariophysi, Siluriformes), with a redefinition of the genera. Zootaxa 1416:1-126. (Ref. 58022)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Traumatogenic (Ref. 58010)
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00470 - 0.01281), b=2.98 (2.84 - 3.12), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 3.8 ±0.6 se; Based on diet studies.
Resilience (Ref. 120179
): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): High to very high vulnerability (71 of 100) .